An inclined roller device, a heating pre-bending furnace and a curved glass toughening production line

Abstract

The utility model relates to a kind of oblique insertion roller way device, heating pre-bending furnace and curved surface glass toughening production line, oblique insertion roller way device includes frame and multiple oblique insertion roller ways, frame is equipped with one rotating shaft and multiple arc slide rails being arranged along the glass conveying direction interval, rotating shaft is hinged to frame with one end in the glass conveying direction front end, and other end is slidably connected in frame;Each oblique insertion roller way is rotatably arranged in one with its corresponding bearing seat, and the upper portion of each bearing seat is connected with rotating shaft by one universal connecting mechanism, and the lower portion of each bearing seat is slidably connected with one arc slide rail one by one by one first sliding member;Frame is also provided with lifting drive mechanism, and lifting drive mechanism is used to drive rotating shaft to drive all oblique insertion roller ways to lift in common, to change the inclination angle of oblique insertion roller way.The utility model can avoid the situation of jamming in oblique insertion roller way adjustment, and accurately control the inclination angle of oblique insertion roller way.

Description

Technical Field

[0001] This utility model belongs to the field of glass bending and forming technology, specifically relating to an inclined roller conveyor device, a heating pre-bending furnace, and a curved glass tempering production line. Background Technology

[0002] If flat glass is directly formed into a deep curved shape or a curved shape with a large arch using a mold or other methods, the glass is prone to cracking, and the curved shape of the glass sheet will also become inaccurate. In addition, sometimes it is necessary to make "︺" shaped glass, that is, glass with a horizontal middle part and curved sides. It is difficult to obtain an accurate product using conventional glass bending and forming equipment.

[0003] Patent CN1262499C discloses an apparatus and method for bending heated glass sheets using rollers. This scheme proposes a bending roller assembly and a bending roller support drive device (together constituting an inclined roller conveyor device). Each bending roller assembly includes multiple bending rollers (i.e., inclined roller conveyors). The bending roller support drive device supports and rotates these multiple bending rollers, gradually increasing their inclination along the glass conveying direction, thus keeping the center of the glass sheet horizontal while pre-bending the sides. However, this scheme uses a connector at the hinge end of a slender connecting device (i.e., a rotating shaft) to allow the rotating shaft to rotate in two directions around an orthogonal axis at the hinge end. Simultaneously, each bending roller is connected to the slender connecting device via a universal connector, which also allows the bending roller to rotate in two directions around the orthogonal axis. This connector and universal connector configuration is prone to jamming or incomplete angle adjustment during the bending roller inclination angle adjustment process, and it also requires high precision in the machining of components.

[0004] Furthermore, this solution requires installing a conical clamp element and a clamp actuation device on each bending support rib. When adjusting the tilt angle of the bending roll, the conical clamp element must first be released by the clamp actuation device, and then the conical clamp element is tightened onto the bending support rib after the angle is adjusted. This clamping method is not only structurally complex and costly, but also has low adjustment efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a slanted roller conveyor device, a heating pre-bending furnace, and a curved glass tempering production line. It adopts a universal connection mechanism to avoid jamming during the adjustment of the slanted roller conveyor, and achieves precise control of the tilt angle of the slanted roller conveyor. It adopts a first sliding member, which eliminates the need for an actuation device and the loosening and clamping process, thereby improving the adjustment efficiency of the slanted roller conveyor and reducing equipment costs.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a slanted roller conveyor device for bending glass, comprising a frame and multiple slanted roller conveyors spaced apart along the glass conveying direction. The frame is provided with a rotating shaft and multiple arc-shaped slide rails spaced apart along the glass conveying direction. One end of the rotating shaft at the front end in the glass conveying direction is hinged to the frame, and the other end of the rotating shaft is slidably connected to the frame.

[0007] Each inclined roller is rotatably mounted in a corresponding bearing seat. The upper part of each bearing seat is connected to the rotating shaft through a universal joint mechanism, and the lower part of each bearing seat is slidably connected to the arc-shaped slide rail one-to-one through a first sliding member.

[0008] The frame is also equipped with a lifting drive mechanism, which is used to drive the rotating shaft to lift all the inclined rollers together, so as to change the inclination angle of the inclined rollers.

[0009] Its advantages are: compared with the technical solution of patent CN1262499C, the present invention uses a first sliding member, which eliminates the need for an actuation device and the loosening and clamping process, resulting in high adjustment efficiency and low equipment cost. The connection between the inclined roller conveyor and the rotating shaft through a universal joint mechanism prevents jamming during adjustment, ensuring normal operation of the equipment and precise control of the inclination angle of the inclined roller conveyor.

[0010] Furthermore, the universal joint mechanism includes a second sliding member, a T-block, and a fixed pin; the upper part of the second sliding member is slidably sleeved on the rotating shaft, and the lower part of the second sliding member is rotatably connected to the upper part of the T-block. The lower part of the T-block is provided with a shaft hole, and the fixed pin passes through the shaft hole and is fixedly connected to the bearing seat. The T-block can rotate around the fixed pin and can slide along the length direction of the fixed pin. The fixed pin is parallel to the inclined roller track.

[0011] Its beneficial effects are: during the process of the inclined roller conveyor being lifted upward or lowered downward by the rotating shaft to adjust the tilt angle, the T-shaped block rotates around the fixed pin and slides along the length of the fixed pin, the second sliding member rotates around the upper part of the T-shaped block and slides along the length of the rotating shaft. Through sliding and rotation in multiple directions, the lifting process of the inclined roller conveyor is kept smooth, avoiding structural jamming, and ensuring that the adjustment of the tilt angle of the inclined roller conveyor is more accurate.

[0012] Furthermore, the upper part of the T-shaped block is a T-shaped head, and its opposite ends are provided with concentric arc surfaces, and the lower part of the second sliding member is rotatably engaged with the arc surfaces.

[0013] Its beneficial effect is that it provides a specific structure for the T-block to achieve rotational engagement with the second sliding member, and this structure is simple and easy to implement.

[0014] Furthermore, the first sliding member is a slide assembly, including a slide and two rows of clamping wheels disposed on the slide. The slide is fixedly connected to the bearing seat, and the two rows of clamping wheels are clamped on the corresponding arc-shaped slide rail.

[0015] Its beneficial effect is that it provides a structural form for the first sliding member, which facilitates implementation.

[0016] Furthermore, of the two rows of clamping wheels, one row of clamping wheels is a rotatable eccentric wheel, and the other row of clamping wheels is a fixed concentric wheel.

[0017] Its beneficial effects are: during sliding, the rotation of the eccentric wheel drives the slide block to slide on the arc-shaped slide rail, while the concentric wheel can stabilize the movement direction of the slide block and prevent deviation during sliding. This structure, with the eccentric wheel and concentric wheel working together, can ensure that the preload with the arc-shaped slide rail is maintained and improve the sliding accuracy.

[0018] Furthermore, the first sliding member is a slider, the slider having an opening, and the opening of the slider is fitted onto the arc-shaped slide rail.

[0019] Its beneficial effect is that it provides another structural form for the first sliding member, making it easier to choose and implement according to the situation.

[0020] Furthermore, the frame is provided with a linear slide groove, which extends vertically and is inclined. One end of the rotating shaft along the rear end of the glass conveying direction is slidably disposed in the linear slide groove. The frame is provided with a hinge shaft, and the rotating shaft is hinged to the hinge shaft. The axis of the hinge shaft is perpendicular to the length direction of the linear slide groove.

[0021] Its beneficial effects are: the setting of the linear chute can provide guidance for the lifting process of the rotating shaft, the axis of the hinge shaft is perpendicular to the length direction of the linear chute, and the rotating shaft only rotates around the axis of the hinge shaft. Compared with the technical solution of CN1262499C patent, the slender connecting device has eliminated the degree of freedom in one direction at the hinge, which improves the stability of the device and further avoids the problem of jamming during the adjustment of the inclined roller conveyor.

[0022] Another technical solution proposed by this utility model is: a heating pre-bending furnace, comprising a furnace body and a heating chamber enclosed by the furnace body, wherein multiple horizontal rollers on the same horizontal plane are arranged at intervals along the glass conveying direction within the heating chamber from the inlet end to the outlet end. An inclined roller conveyor device as described above is arranged on one or both sides of the glass conveying direction and near the outlet end of the heating chamber, with one end of the inclined roller conveyor located within the heating chamber and between two adjacent horizontal rollers.

[0023] Its advantages are: pre-bending of glass can be achieved inside the heating furnace, and the production efficiency is high and the structure is stable.

[0024] Furthermore, it also includes a thermal insulation strip lifting drive and a furnace body thermal insulation component. The furnace body is provided with elongated holes for the inclined insertion rollers to pass through. The elongated holes are arranged one-to-one with the inclined insertion rollers. The furnace body thermal insulation component is used to block multiple elongated holes. The furnace body thermal insulation component includes an upper thermal insulation component located above the inclined insertion rollers and a lower thermal insulation component located below the inclined insertion rollers. The upper and lower thermal insulation components have the same structure. Both the upper and lower thermal insulation components include multiple thermal insulation strips and multiple lifting rods. The thermal insulation strips are located in the elongated holes. One end of the lifting rod is connected to the end of the thermal insulation strip that is away from the inclined insertion rollers, and the other end of the lifting rod is connected to the thermal insulation strip lifting drive.

[0025] Its beneficial effects are: the furnace body insulation component can insulate the holes above and below the inclined insertion roller, and the lifting and lowering of the insulation strip can provide lifting and lowering space for the inclined insertion roller and seal the long strip holes.

[0026] Multiple lifting rods located above or below the inclined roller conveyor are connected to the same crossbar, which is connected to a thermal insulation strip lifting drive.

[0027] Its advantages are: it eliminates the need for each insulation strip to be connected to an insulation strip lifting drive, making it easier to lift multiple insulation strips synchronously.

[0028] Furthermore, one end of the crossbar near the inlet of the heating chamber is rotatably connected to the furnace body.

[0029] Its beneficial effects are: when the insulation strip lifting drive motor drives each insulation strip to rise and fall through the crossbar, the crossbar rotates around its end, so that the insulation strip near the inlet end of the heating chamber has a small lifting distance and the insulation strip near the outlet end of the heating chamber has a large lifting distance. This can effectively cooperate with the lifting of the inclined roller conveyor, seal the long strip hole as much as possible, and effectively reduce the heat loss in the heating furnace.

[0030] Another technical solution proposed by this utility model is: a curved glass tempering production line, including an loading table, a heating device, a cooling device and a unloading table arranged sequentially along the process route, wherein the heating device adopts any of the heating pre-bending furnaces described above.

[0031] Furthermore, it also includes a bending device for forming curved glass, which is positioned between the heating and cooling devices.

[0032] The beneficial effects of this utility model are as follows: The inclined roller conveyor device of this utility model adopts a first sliding member, eliminating the need for an actuation device and the loosening and clamping process, resulting in high adjustment efficiency and low equipment cost. The inclined roller conveyor and the rotating shaft are connected by a universal joint mechanism, enabling sliding and rotation in multiple directions. This ensures that the lifting and lowering process of the inclined roller conveyor remains smooth, preventing structural jamming and guaranteeing more precise adjustment of the inclined roller conveyor's tilt angle. Pre-bending of the glass is achieved inside the heating furnace, resulting in high production efficiency and structural stability. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the inclined roller conveyor device described in Embodiment 1 of this utility model;

[0034] Figure 2 This is an isometric view of the assembly of the inclined roller conveyor and the universal joint connection mechanism described in Embodiment 1 of this utility model;

[0035] Figure 3 This is a front view of the T-shaped block described in Embodiment 1 of this utility model;

[0036] Figure 4 This is a top view of the T-shaped block described in Embodiment 1 of this utility model;

[0037] Figure 5 This is a side view of the heating pre-bending furnace described in Embodiment 2 of this utility model;

[0038] Figure 6 This is a front view of the heating pre-bending furnace described in Embodiment 2 of this utility model;

[0039] Figure 7 This is a schematic diagram of the structure of the furnace body insulation component for the pre-bent furnace wall as described in Embodiment 2 of this utility model;

[0040] The diagram shows the following components: 1. Furnace body; 2. Heating chamber; 3. Horizontal roller conveyor; 4. Inclined roller conveyor; 5. Inclined roller conveyor assembly; 6. Frame; 7. Base; 8. Arc-shaped slide rail; 9. Straight slide groove; 10. Rotating shaft; 11. Bearing seat; 12. Lifting cylinder; 13. Slide assembly; 1301. Slide; 1302. Concentric wheel; 1303. Eccentric wheel; 14. Hinge shaft; 15. Power input wheel; 16. Fixed plate; 17. Second sliding component; 18. T-block; 1801. Shaft hole; 1802. Arc surface; 19. Pressure plate; 20. Fixed pin; 21. Long strip hole; 22. Insulation strip; 23. Crossbar rotating shaft; 24. Crossbar; 25. Insulation strip lifting drive; 26. Lifting rod. Detailed Implementation

[0041] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention in any way.

[0042] Example 1

[0043] See attached document Figures 1 to 4 As shown, a slanted roller conveyor device for bending glass includes a frame 6 and multiple slanted roller conveyors 4 spaced apart along the glass conveying direction, forming a slanted roller conveyor group 5. One side of the frame 6 is provided with multiple arc-shaped slide rails 8 spaced apart along the glass conveying direction, the number of which corresponds to the number of slanted roller conveyors 4. The center of each arc-shaped slide rail 8 is located near the glass, and the straight line connecting the centers of the multiple arc-shaped slide rails 8 is parallel to the glass conveying direction. The frame 6 also has a rotating shaft 10. The end of the rotating shaft 10 at the front end in the glass conveying direction is hinged to a hinge shaft 14 on the frame 6, for example, via a bushing; the end of the rotating shaft 10 at the rear end in the glass conveying direction is slidably disposed in a straight groove 9 on the frame 6. The straight groove 9 extends vertically and is inclined. Specifically, the upper end of the straight groove 9 is closer to the glass than the lower end. In order to ensure that when one end of the rotating shaft 10 rotates around the hinge shaft 14, the other end can slide smoothly up and down along the length of the straight slide groove 9, the hinge shaft 14 is inclined and the inclined hinge shaft 14 is perpendicular to the length of the straight slide groove 9.

[0044] Reference Appendix Figure 1 and attached Figure 2 As shown, a bearing seat 11 is provided on the inclined roller conveyor 4, and a bearing is provided inside the bearing seat 11. The inclined roller conveyor 4 rotates within the bearing seat 11 through cooperation with the bearing. A first sliding member is provided at the lower part of the bearing seat 11. The first sliding member can clamp on the arc-shaped slide rail 8 and slide up and down along the arc-shaped slide rail 8. In this embodiment, the first sliding member is a slide block assembly 13. The slide block assembly 13 includes a slide block 1301 and two rows of clamping wheels provided on the same side of the slide block 1301. The two rows of clamping wheels are respectively provided on both sides of the arc-shaped slide rail 8 along its length direction, clamping the arc-shaped slide rail 8 from the inner and outer sides and sliding up and down along the length direction of the arc-shaped slide rail 8. The circular area enclosed by the circular trajectory of the arc-shaped slide rail 8 is the "inner side", and the area outside the circular area is the "outer side". Preferably, one column consists of rotatable eccentric wheels 1303, and the other column consists of non-rotatable concentric wheels 1302. This allows the eccentric wheels 1303 to rotate, causing the slide block 1301 to slide on the arc-shaped slide rail 8 during sliding, while the concentric wheels 1302 stabilize the direction of movement of the slide block 1301 and prevent deviation during sliding. This structure, with the eccentric wheels 1303 and concentric wheels 1302 working together, ensures the preload of the arc-shaped slide rail 8 is maintained and improves sliding accuracy. More preferably, one column on the inner side of the arc-shaped slide rail 8 consists of concentric wheels 1302, and the other column on the outer side consists of eccentric wheels 1303.

[0045] In other embodiments, the first slider is a slider with an opening, the opening of which is fitted onto the arc-shaped slide rail 8, and the slider slides up and down along the arc-shaped slide rail 8.

[0046] Continue to refer to the appendix Figure 2 As shown, the bearing housing 11 is also provided with a universal joint mechanism for connecting with the rotating shaft 10. The universal joint mechanism includes a second sliding member 17, a T-shaped block 18, a fixed pin 20, and a pressure plate 19. The upper part of the second sliding member 17 is provided with a sliding sleeve for slidingly fitting on the rotating shaft 10, and the lower part is provided with a groove for accommodating the T-shaped block 18. The T-shaped head of the upper part of the T-shaped block 18 is located in the groove, and the pressure plate 19 is fixedly connected to the lower part of the second sliding member 17, sealing the T-shaped head of the T-shaped block 18 in the groove of the lower part of the second sliding member 17.

[0047] Combined with the appendix Figure 3 , 4 As shown, the lower part of the T-shaped block 18 is provided with a pin hole 1801. The fixing pin 20 passes through the pin hole 1801 and is fixedly connected to the fixing plate 16 on the bearing seat 17. The length direction of the fixing pin 20 is perpendicular to the glass conveying direction. The T-shaped block 18 can rotate around the fixing pin 20 and slide along the length direction of the fixing pin 20. The two opposite ends of the upper part of the T-shaped block 18 are arc surfaces 1802, and these two arc surfaces 1802 are concentrically arranged. Correspondingly, the inner wall shape of the groove in the lower part of the second sliding member 17 matches the arc surface 1802, so that the T-shaped block 18 can rotate relative to the groove in the lower part of the second sliding member 17, with the center of rotation being the center of the arc surface 1802.

[0048] Each inclined roller conveyor 4 is connected to the rotating shaft 10 through the universal joint mechanism. Therefore, by rotating the rotating shaft 10 around the hinge shaft 14, the inclined roller conveyor 4 can be raised or lowered. Since one end of the rotating shaft 10 is hinged, during the raising and lowering process of the rotating shaft 10, each inclined roller conveyor 4 can adaptively form different tilt angles. The hinge end of the rotating shaft 10 is at the front end of the glass conveying direction. Thus, along the glass conveying direction, the tilt angle of each inclined roller conveyor 4 gradually increases. As the softened glass is conveyed and passes through the inclined roller conveyor 4, the two sides of the glass are gradually bent.

[0049] During the process of the inclined roller conveyor 4 being lifted upward or lowered downward by the rotating shaft 10 to adjust the tilt angle, the T-shaped block rotates around the fixed pin shaft, the T-shaped block 18 slides along the length direction of the fixed pin shaft 20, the second sliding member 17 rotates around the upper part of the T-shaped block 18, and the second sliding member 17 slides along the length direction of the rotating shaft 10. Through sliding and rotation in multiple directions, the lifting and lowering process of the inclined roller conveyor 4 is kept smooth, avoiding structural jamming, and ensuring that the adjustment of the tilt angle of the inclined roller conveyor 4 is more precise.

[0050] Furthermore, the lifting and lowering of the rotating shaft 10 and the inclined roller conveyor 4 can be driven by a lifting mechanism, such as a lifting cylinder, electric cylinder, or hydraulic cylinder; in this embodiment, a lifting cylinder is used. The lifting cylinder is positioned away from the hinge shaft 14 to obtain a larger torque. The lifting cylinder is located below the inclined roller conveyor 4, and its cylinder body is fixedly connected to the frame 6. The extension rod of the lifting cylinder is hinged to the bearing seat 11 of one of the inclined roller conveyors 4 to drive that inclined roller conveyor 4 to rise and fall along the arc-shaped slide rail 8. Through the universal joint and the rotating shaft 10, all inclined roller conveyors 4 are driven to rise and fall along their corresponding arc-shaped slide rails 8.

[0051] Furthermore, a power input wheel 15 is installed at one end of the inclined roller conveyor 4 away from the glass. A drive mechanism is provided on the frame 6. The drive mechanism connects all the power input wheels 15 through a transmission connector to drive the power input wheels 15 to rotate, thereby driving the inclined roller conveyor 4 to rotate. The drive mechanism is a geared motor or a motor and a gearbox, the transmission connector is a synchronous belt or chain, and the power input wheel is a synchronous pulley or a sprocket.

[0052] Alternatively, each inclined roller conveyor 4 can be connected to a corresponding drive mechanism via its power input wheel 15, and each drive mechanism can drive the inclined roller conveyor 4 to rotate at the same speed.

[0053] Example 2

[0054] As attached Figure 5 To be continued Figure 7As shown, this embodiment provides a heating pre-bending furnace, including a furnace body 1 and a heating chamber 2 enclosed by the furnace body. The two ends of the heating chamber 2 are an inlet end and an outlet end, respectively. From the inlet end to the outlet end, multiple horizontal roller conveyors 3 are arranged at intervals along the glass conveying direction within the heating chamber 2, positioned on the same horizontal plane, for horizontally conveying glass. Therefore, the upper surfaces of the multiple horizontal roller conveyors 3 form a horizontal conveying surface for conveying glass. Near the outlet end of the heating chamber 2, a slanted roller conveyor device is arranged on each side of the glass conveying direction. The slanted roller conveyor device is the same as that described in Embodiment 1. One end of the slanted roller conveyor 4 is located inside the heating chamber 2, between two adjacent horizontal roller conveyors 3, and the other end of the slanted roller conveyor 4 is located outside the furnace body 1. The positions of the two slanted roller conveyor devices correspond to each other in the glass conveying direction. In other embodiments, only one slanted roller conveyor device is arranged on one side of the glass conveying direction to bend one side of the glass.

[0055] The inclined roller conveyor device in this embodiment also includes a base 7, which is equipped with a bottom slide rail. A slider is located at the lower end of the frame 6, and the slider is slidably connected to the bottom slide rail. The length direction of the bottom slide rail is perpendicular to the glass conveying direction. The frame 6 can slide along the length direction of the bottom slide rail to adjust the distance between the inclined roller conveyor groups 5 on both sides of the furnace body 1, thereby enabling the production of glass of different sizes. The driving mechanism for driving the frame 6 to slide along the bottom slide rail can be a ball screw mechanism, a hydraulic cylinder, an electric push rod, or a gear and rack mechanism, etc.

[0056] In this invention, part of the inclined roller conveyor 4 is located inside the furnace body 1, and the other part is located outside the furnace body 1. Therefore, holes need to be made in the furnace body 1 for the inclined roller conveyor 4 to pass through. Since the inclined roller conveyor 4 needs to be adjusted in height by moving up and down, the holes in the furnace body 1 should be elongated holes, and these elongated holes should correspond one-to-one with the inclined roller conveyor 4. This necessitates sealing and insulating the holes above and below the inclined roller conveyor 4 in the elongated holes. Therefore, this embodiment also proposes a furnace body insulation component for sealing multiple elongated holes.

[0057] The furnace body insulation assembly includes an upper insulation assembly located above the inclined roller conveyor 4 and a lower insulation assembly located below the inclined roller conveyor 4. The upper and lower insulation assemblies have the same structure, only their orientations are opposite. (See attached diagram.) Figure 7The structure of the upper furnace body insulation component is described using the example shown; the structure of the lower insulation component will not be repeated. The furnace body insulation component includes multiple insulation strips 22, multiple lifting rods 26, and an insulation strip lifting drive 25. The multiple insulation strips 22 and multiple lifting rods 26 are arranged in a one-to-one correspondence. Multiple elongated holes 21 are provided on the side wall of the furnace body 1 for the inclined insertion roller conveyor 4 to pass through. Two insulation strips 22 are installed in each elongated hole 21, located above and below the inclined insertion roller conveyor 4 within the elongated hole 21, respectively. One end of the insulation strip 22 away from the inclined insertion roller conveyor 4 is connected to the lifting rod 26. Multiple lifting rods 26 located on the same side of the inclined insertion roller conveyor 4 are connected to the same crossbar 24. The crossbar 24 is connected to the insulation strip lifting drive 25. The insulation strip lifting drive 25 drives the connected lifting rods 26 and insulation strips 22 to rise and fall through the crossbar 24, providing lifting space for the inclined insertion roller conveyor 4 and sealing the elongated holes 21.

[0058] Furthermore, because the inclination angle of the inclined roller conveyor 4 in the glass conveying direction gradually increases in this invention, the lifting height of each inclined roller conveyor 4 is also different, and the greater the inclination angle of the inclined roller conveyor 4, the greater the height that the inclined roller conveyor 4 needs to be raised. This requires that the heat insulation strip 22 used to block the elongated hole 21 should also be raised and lowered in coordination with the height of the inclined roller conveyor 4, and thus multiple heat insulation strips 22 also need to have different lifting heights. To achieve this goal, a crossbar rotating shaft 23 is provided at one end of the crossbar 24 near the inlet of the heating chamber. The crossbar rotating shaft 23 is rotatably connected to the furnace body 1. When the insulation strip lifting drive 25 drives each insulation strip 22 to rise and fall through the crossbar 24, the crossbar 24 will rotate around the crossbar rotating shaft 23. This results in a smaller lifting distance for the insulation strip 22 near the inlet of the heating chamber and a larger lifting distance for the insulation strip 22 near the outlet of the heating chamber. This effectively coordinates with the lifting of the inclined roller conveyor 4, sealing the long strip hole 21 as much as possible and effectively reducing heat loss in the heating chamber.

[0059] Preferably, along the glass conveying direction, the lengths of the various elongated holes 21 are different. The elongated holes 21 near the inlet end of the heating chamber are shorter, and the elongated holes 21 near the outlet end of the heating chamber are longer. The length of the elongated holes 21 can be linear or nonlinear.

[0060] Preferably, the end of the insulation strip 22 facing the inclined roller 4 is configured as an arc shape that fits into the surface of the inclined roller 4, so as to better fit the inclined roller 4 and further improve the sealing and insulation effect.

[0061] The insulation strip lifting drive 25 in the furnace body insulation component can be driven by a motor, cylinder or hydraulic cylinder or other drive mechanism.

[0062] For the furnace body insulation components, other implementation methods can also be adopted. For example, instead of setting up crossbars and crossbar rotation shafts, multiple insulation strip lifting drive motors can be set up, with the same number as the lifting rods. The insulation strip lifting drive motors and lifting rods are connected one-to-one, and each insulation strip lifting drive motor 25 drives the corresponding lifting rod and insulation strip to rise and fall. In this way, each insulation strip can be adjusted individually, so that the distance between the lower end of the insulation strip and the inclined roller conveyor 4 is in the optimal state, achieving the best insulation effect.

[0063] Example 3

[0064] A curved glass tempering production line includes an loading table, a heating device, a cooling device, and an unloading table arranged sequentially along the process route. The heating device employs a pre-bending furnace as described in Example 2. Glass is loaded onto the loading table, passed through the pre-bending furnace, heated and shaped into a predetermined shape, then cooled by the cooling device to achieve tempering, and finally unloaded from the unloading table. The cooling device in this embodiment can have a bending function, such as using existing hard-axis bending cooling equipment or soft-axis bending cooling equipment, which can further bend the pre-shaped glass from the pre-bending furnace to form the final desired shape, followed by cooling to temper the bent glass.

[0065] In another embodiment, a bending device is also included, which is disposed between the heating pre-bending furnace and the cooling device. The bending device can be a mold or the like. The glass is sheeted on the loading table, heated and pre-shaped into a certain shape after passing through the heating pre-bending furnace, then shaped into the final desired shape by the bending device, cooled by the cooling device to achieve glass tempering, and finally unloaded from the unloading table.

[0066] The above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Those skilled in the art should understand that modifications or equivalent substitutions can be made to the specific implementation of this utility model with reference to the above embodiments. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model are within the protection scope of the pending claims.

Claims

1. A slanted roller conveyor device for bending glass, comprising a frame (6) and a plurality of slanted roller conveyors (4) spaced apart along the glass conveying direction, characterized in that, The frame (6) is provided with a rotating shaft (10) and multiple arc-shaped slide rails (8) arranged at intervals along the glass conveying direction. One end of the rotating shaft (10) at the front end of the glass conveying direction is hinged to the frame (6), and the other end of the rotating shaft (10) is slidably connected to the frame (6). Each inclined roller conveyor (4) is rotatably set in a corresponding bearing seat (11). The upper part of each bearing seat (11) is connected to the rotating shaft (10) through a universal joint mechanism, and the lower part of each bearing seat (11) is slidably connected to the arc-shaped slide rail (8) one-to-one through a first sliding member. The frame (6) is also provided with a lifting drive mechanism, which is used to drive the rotating shaft (10) to lift all the inclined rollers (4) together, so as to change the tilt angle of the inclined rollers (4).

2. The inclined roller conveyor device according to claim 1, characterized in that: The universal connection mechanism includes a second sliding member (17), a T-block (18), and a fixed pin (20); the upper part of the second sliding member (17) is slidably sleeved on the rotating shaft (10), and the lower part of the second sliding member (17) is rotatably connected to the upper part of the T-block (8). The lower part of the T-block (8) is provided with a shaft hole (1801). The fixed pin (20) passes through the shaft hole (1801) and is fixedly connected to the bearing seat (11). The T-block (8) can rotate around the fixed pin (20) and can slide along the axial direction of the fixed pin (20). The fixed pin (20) is parallel to the inclined roller conveyor (4).

3. The inclined roller conveyor device according to claim 2, characterized in that: The upper part of the T-shaped block (8) is a T-shaped head, and its two opposite ends are provided with concentric arc surfaces (1802). The lower part of the second sliding member (17) rotates and engages with the arc surface (1802).

4. The inclined roller conveyor device according to claim 1, characterized in that: The first sliding member is a slide assembly (13), including a slide (1301) and two rows of clamping wheels disposed on the slide (1301). The slide (1301) is fixedly connected to the bearing seat (11), and the two rows of clamping wheels are clamped on the corresponding arc-shaped slide rail (8).

5. The inclined roller conveyor device according to claim 4, characterized in that: Of the two rows of clamping wheels, one row consists of rotatable eccentric wheels (1303), and the other row consists of fixed concentric wheels (1302).

6. The inclined roller conveyor device according to claim 1, characterized in that: The first sliding member is a slider, which has an opening, and the opening of the slider is fitted onto the arc-shaped slide rail (8).

7. The inclined roller conveyor device according to claim 1, characterized in that: The frame (6) is provided with a linear slide (9), which extends vertically and is inclined. The rotating shaft (10) is slidably disposed at one end of the rear end along the glass conveying direction in the linear slide (9). The frame (6) is provided with a hinge shaft (14), which is hinged to the rotating shaft (10). The axis of the hinge shaft (14) is perpendicular to the length direction of the linear slide (9).

8. A pre-bending heating furnace, comprising a furnace body (1) and a heating chamber (2) enclosed by the furnace body (1), wherein multiple horizontal roller conveyors (3) at intervals along the glass conveying direction are arranged in the heating chamber (2) from the inlet end to the outlet end, characterized in that: An inclined roller conveyor device as described in any one of claims 1-7 is provided on one or both sides of the glass conveying direction and near the outlet end of the heating chamber (2), wherein one end of the inclined roller conveyor (4) is located inside the heating chamber (2) and between two adjacent horizontal roller conveyors (3).

9. The heating pre-bending furnace according to claim 8, characterized in that: It also includes a heat insulation strip lifting drive (25) and a furnace body heat insulation component. The furnace body (1) is provided with a long strip hole (21) for the inclined roller conveyor (4) to pass through. The long strip hole (21) is provided one-to-one with the inclined roller conveyor (4). The furnace body heat insulation component is used to block multiple long strip holes (21). The furnace body heat insulation component includes an upper heat insulation component located above the inclined roller conveyor (4) and a lower heat insulation component located below the inclined roller conveyor (4). The upper heat insulation component and the lower heat insulation component have the same structure. Both the upper heat insulation component and the lower heat insulation component include multiple heat insulation strips (22) and multiple lifting rods (26). The heat insulation strips (22) are located inside the long strip holes (21). One end of the lifting rod (26) is connected to the end of the heat insulation strip (22) that is away from the inclined roller conveyor (4). The other end of the lifting rod (26) is connected to the heat insulation strip lifting drive (25).

10. The heating pre-bending furnace according to claim 9, characterized in that: Multiple lifting rods (26) located above or below the inclined roller conveyor (4) are connected to the same crossbar (24), which is connected to a thermal insulation strip lifting drive (25).

11. A curved glass tempering production line, comprising an loading table, heating equipment, cooling equipment, and a unloading table arranged sequentially along a process route, characterized in that: The heating equipment is a pre-bending furnace as described in any one of claims 8-10, and the pre-bending furnace is located between the upper platen and the lower platen.

12. The curved glass tempering production line according to claim 11, characterized in that: A bending device for forming curved glass, installed between heating and cooling equipment.

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